Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (937,844 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Sabah A Ismail
Volcanic activity
Geochemistry
Ore geology
Metrics
H-Index
i10 Index
Citation
13
15
648
Omer S Al-Tamimi|Omer Sabah Ibrahiem
River basin hydrology
Environmental geology and Groundwater Hydrology
Metrics
H-Index
i10 Index
Citation
7
5
160
Abbas F Gharib
Petroleum Geology
Basin Modeling
Organic Geochemistry
palynofacies
Well logging and evaluation
Metrics
H-Index
i10 Index
Citation
5
1
63
Shaheen Mohammed Saleh Ahmed Alhirmizy
Geological Data Scientist Specializing in AI-Driven Insights
Metrics
H-Index
i10 Index
Citation
4
3
137
Abbas R Ali
Bio-geochemistry
minerology
sedimentology
Metrics
H-Index
i10 Index
Citation
4
2
57
Soran N Sadeq
Geology
environmental
pollution
water sciences
Metrics
H-Index
i10 Index
Citation
3
0
23
Rankings
Ranking Based On Selection: 1
Sabah A Ismail
Metrics
H-Index
i10 Index
Citation Counts
13
15
648
Rankings
Ranking Based On Selection: 2
Omer S Al-Tamimi|Omer Sabah Ibrahiem
Metrics
H-Index
i10 Index
Citation Counts
7
5
160
River basin hydrology
Environmental geology and Groundwater Hydrology
Rankings
Ranking Based On Selection: 3
Abbas F Gharib
Metrics
H-Index
i10 Index
Citation Counts
5
1
63
Petroleum Geology
Basin Modeling
Organic Geochemistry
palynofacies
Well logging and evaluation
Rankings
Ranking Based On Selection: 4
Shaheen Mohammed Saleh Ahmed Alhirmizy
Metrics
H-Index
i10 Index
Citation Counts
4
3
137
Geological Data Scientist Specializing in AI-Driven Insights
Rankings
Ranking Based On Selection: 5
Abbas R Ali
Metrics
H-Index
i10 Index
Citation Counts
4
2
57
Rankings
Ranking Based On Selection: 6
Mohammed Omar Ibrahim
Metrics
H-Index
i10 Index
Citation Counts
4
2
40
Rankings
Ranking Based On Selection: 7
Dhahir Khaleel Ali
Metrics
H-Index
i10 Index
Citation Counts
4
0
22
Rankings
Ranking Based On Selection: 8
Soran N Sadeq
Metrics
H-Index
i10 Index
Citation Counts
3
0
23
Geology
environmental
pollution
water sciences
Rankings
Ranking Based On Selection: 9
Mahmood Amal-Mufarji
Metrics
H-Index
i10 Index
Citation Counts
2
0
10
Rankings
Ranking Based On Selection: 10
Ammar Ali
Metrics
H-Index
i10 Index
Citation Counts
1
0
5